Carburetor



Feb. 15, 1927.

G. KINGSTON CARBURETOR Fil ed Feb. 1.9. 1923 \A/ EEEEE Patented Feb. 15, 1927.

I enonen'xnvcs'ron, or KOKOMO, INDIANA.

CABBURETOR. 4

Application filed February 19, 1923. Serial no. 619,504.

This invention relates to a carburetor and particularly to a carburetor wherein convenient remotely controlled adjusting means are provided and wherein said adjusting means may be operated without disturbing the initial and permanent adjustment of the carburetor.

Under certain conditions in certain types of carburetors it is desirable that the valve controlling the inlet for liquid fuel be temporarily opened to a greater extent than ordinarily for proper operation ofthe carburetor on which the engine is mounted. These conditions usually obtain when the engine 5 is'cold, as for example at starting, and it is of course desirable that this additional opening of the fuel valve be made without disturbing the initial and permanent adjustment thereof.

It is an important object therefore of this invention to provide a carburetor wherein a temporary adjustment of a regulating valve may be made without disturbing the permanent adjustment thereof.

It is also an important object of this invention to provide an adjusting means of the class described which is compact, eco-v nomical and which may be conveniently attached to existing typesof carburetors.

the present invention will be apparent from the disclosures in the specification and the accompanying drawings. I

The invention (in a preferred form) is shown on the drawingsand hereinafter more fully described.

On the drawings: Figurel is a fragmentary top plan view of a carburetor embodying the principles of this invention, showing one form of remote control for the fuel valve adjusting means. Figure 2 is a side elevation of the carburetor.

tion on the line 3-3 of Figure 1, with parts omitted and parts in elevation.

Figure 4c is a section on the line H of Figure 3. r

As shown on the drawings: The reference numeral 1 indicates a carburetor which is of a well known construction and which embodies the usual mixing chamber, fuel inlet and air inlet and is pro-' vided with a usual throttle valve for controlling the discharge of fuel mixture from Other and further important objects of of said hexagonal flange 6.

is provided with an integral outwardly ex- Figure 3 is an enlarged fragmentary sec-.

the carburetor." Liquidfuel enters the carburetor through an inlet passage 2 and the amount ofjfuelflowing through said inlet passage 21s regulated by a needle valve 3 which is adjustably supported relative to the carburetor in a manner which will now be described. I Engaged in a threaded aperture formed in a boss 4 at the top of the carburetor casing 1 and-extending into the interior of the carburetor is an externally threaded sleeve 5'which is provided, intermediate its ends, with an integral hexagonal flange 6. The upper end of thestem of the needle valve 8 is externally threaded as indicated at 7 and the inside ofthe sleeve 5 is threaded to receive said. threaded porment of the needle valve 3 relative to the sleeve 5, whereby, a permanent adjustment of the needle valve is effected, the outer end of said needle valve is provided witha knurled adjusting nut 8.

In order to effect a temporaryaxial -a d justment of the needle valve 3 the passage 2 without disturbing the initial relative, to.

adjustment thereof; relative to the sleeve 5,

I have provided means whereby said sleeve may berotated' and a consequent axial adjustment of the needle valve effected. The

upper end of the threaded sleeve 5 is reduced as indicated at 9 and engaged over said reduced portion and resting on the top of the hexagonal flange 6 is a plate 10 having an integral downwardly extending flange 11 thereon engaging five of the vertical surfaces Said plate 10 tending arm 12 which at its outer end is provided with a suitable binding post 13 and binding screw 14, whereby said plate and the sleeve 5 may be connected to a' Bowden wire or other suitable connection 15 for operation from a distance in a man ner to be described hereinafter.

Engaged .around the reduced portion and resting on the plate 10 isa suitable washer 16 and engaged on said reduced portion 9 outside of said washer 16 and preferably tightened thereagainst is a nut 17. The upper end of the passage through the nut 17 is reduced to form a bevel face i 18 and the upper end of the reduced portion valve 3 from rotation relative to the sleeve- 9is beveled at 19 to coact with said bevel face; said portion 9' alsobeing slotted as at 20, whereby coaction of the bevel faces 18 and 19, as the nut is tightened, acts to lock thethreaded portion 7 and the needle 5. By virtue of this construction it is possible to lock the needle valve 3, in properpermanent adjustment, which adjustment will not be disturbed by't-he rotation of the sleeve "5 to eliect a temporary'adjust1nent.

In the construction il-lnstrat'ed', the B'Owden wire 'orfiexib'le shaft 'islextenfded through V "a fle gibl'e cover"'2l"which has one end sup' ported infa'suitable'boss' on the carburefor l 'an d which extendsto a Sleeve 23 which is supported by means of a bracket 24' {on theffdash of an autoinobile or at any other place. from which il'l'iS' desirable to" effect the'temporary adjustment of the needle valve 3.. The end otthe Bowden wire I5 is secured to the stem of a handle 25 which is slidably' mounted in'the sleeve 23 and it is apparent that by pulling out saidhandle 25a rotation of the lever'12, plate 10,

hexagonal flange 6, and consequently of the sleeve 5* a5n'd needlevalve 3, will beeiiected to raise saidf'needle valve away from the which is the-proper position of the valve 3 fornormal economical operation of the engine, this position having been arrived at by adjustment of said valve relative to the I sleeve 5 and subsequently secured by a tightening of the nut 17.

It will be apparent from the foregoing descriptiori that the present invention provides means whereby a regulating valve may be teinp'ora rily adjusted without disturbing the" permanent" adjustment of said valve. Although- Ihave shownan embodiment of thisi'n ention in connection with afpa'rticula'rtype' ot carburetoigit will be appreciated t'liat the sameisreadily applicable toother types of carburetors, and it willbe further apparent-that Qthe apparatus disclosed is economic ahdurable and one which may be readily applied to existing types of carburetors.

I am aware thatnumerous' details of construction may be varied'through a Wide range without departing from the principles of this 'inven'tion, a'hdl' therefore do not purposelimiting the patent granted hereon othei'ivise"than' necessitatedby the prior art. I 7

I claim as my invention:

A fuel" valve, a threaded stem therefor, an' internally and externally threaded sleeve surroi'inding said threaded stem; a" polygonal flange associated with said sleeve, an op'erat ing lever engaging said flange tor -partially rotating saidsleeve, and a distancecontrol adapted to move saidilever'to-temporarily" alter the ad-jiistment-of'sai-d valve.

In testimony whereof 'I ha-Ve hereunto subscribed my name.-

' GEORGE-'KINGSTON. 

